Question

如何在此代码中设置显示类似＆＃34的条件;目前没有发布任何内容。请稍后再回来查看。＆＃34;如果没有检索或输入？目前，如果没有检索或输入任何内容，它只会在前端显示任何内容。所以我想把一条消息代替一无所有。

if($seasontype=="pending"){

$result = " SELECT * FROM ".$wpdb->prefix."bidsys_picklist WHERE  sport = ".$sport." AND pick_result='PENDING' ORDER BY game_date DESC";
$newmeta = $wpdb->get_results($result);

$resultvals = "";
foreach($newmeta as $data){

    $game_details="";
    $hometeam = "";
    $visitorteam = "";

    if(trim($data->game_details)!="")
    $game_details = $data->game_details;

     if($data->visitorteam!=""){ $visitorteam = "<br /><strong>Visitor Team:&nbsp </strong>".$data->visitorteam.""; }
     if($data->hometeam!=""){ $hometeam = "<br /><strong>Home Team:&nbsp </strong>".$data->hometeam.""; }

$gamedate =  strtotime($data->game_date);
$gametime =  $data->game_time;
$endtime = strtotime('+30 minute',$gametime);
$nowtime = date('Y-m-d h:i:s');

    $resultvals = $resultvals."<table class='inner_result'>
                <tr class='hdr_3'>
               <td colspan='4' >".date("n-d-Y",$gamedate)."<br />
               ".$gametime."
                 ".$hometeam."
               ".$visitorteam."
               <br /><div class='todays_pick' ><span><strong>Pick:</strong></span>&nbsp ".$data->your_pick."<br /><span><strong>Odds:</strong></span>&nbsp   ".$data->pick_odds." </div>
               <br /> ".$game_details."</td>
               <td><br />Recommended Unit Play (Risk)<br />
               <div class='todays_units' >".$data->units_play." Units</div>
               </td>
              </tr>
              <tr>
              </tr>
              </table>";
}

 echo $resultvals;
}

Answer 1

if (empty($resultvals)) {
    echo 'There are no results';
}

Answer 2

获取返回的行数并检查行是否大于0

if($wpdb->num_rows>0){
       echo "Your all posts";
   }else{
       echo "Nothing posted";
   }

怎么说＆＃34;做这个＆＃34;如果没有检索到数据或已输入数据

2 个答案: